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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.example.android.leanback;
     18 
     19 import android.content.ContentResolver;
     20 import android.content.Context;
     21 import android.net.Uri;
     22 
     23 import com.google.gson.annotations.SerializedName;
     24 
     25 /**
     26  * Abstract data type to represent music item.
     27  */
     28 public class MusicItem {
     29     // Duration information of current.
     30     @SerializedName("duration")
     31     private String mDuration;
     32 
     33     // File name of this media item.
     34     @SerializedName("file")
     35     private String mFile;
     36 
     37     // The title of this media item.
     38     @SerializedName("title")
     39     private String mMediaTitle;
     40 
     41     // The description of media item.
     42     @SerializedName("description")
     43     private String mDescription;
     44 
     45     // Art information (i.e. cover image) of this media item.
     46     @SerializedName("art")
     47     private String mArt;
     48 
     49     /**
     50      * The conversion function which can return media item's uri through the file name.
     51      *
     52      * @param context The context used to get resources of this app.
     53      * @return The Uri of the selected media item.
     54      */
     55     public Uri getMediaSourceUri(Context context) {
     56         return getResourceUri(context, context.getResources()
     57                 .getIdentifier(mFile, "raw", context.getPackageName()));
     58     }
     59 
     60     /**
     61      * Return the title of current media item.
     62      *
     63      * @return The title of current media item.
     64      */
     65     public String getMediaTitle() {
     66         return mMediaTitle;
     67     }
     68 
     69     /**
     70      * Return the description of current media item.
     71      *
     72      * @return The description of current media item.
     73      */
     74     public String getMediaDescription() {
     75         return mDescription;
     76     }
     77 
     78     /**
     79      * Return the resource id through art file's name.
     80      *
     81      * @param context The context used to get resources of this app.
     82      * @return The resource Id of the selected media item.
     83      */
     84     public int getMediaAlbumArtResId(Context context) {
     85         return context.getResources()
     86                 .getIdentifier(mArt, "drawable", context.getPackageName());
     87     }
     88 
     89     /**
     90      * Helper function to get resource uri based on android resource scheme
     91      *
     92      * @param context Context to get resources.
     93      * @param resID   Resource ID.
     94      * @return The Uri of current resource.
     95      */
     96     public static Uri getResourceUri(Context context, int resID) {
     97         return Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE
     98                 + "://"
     99                 + context.getResources().getResourcePackageName(resID)
    100                 + '/'
    101                 + context.getResources().getResourceTypeName(resID)
    102                 + '/'
    103                 + context.getResources().getResourceEntryName(resID));
    104     }
    105 }
    106